Unless a different meaning is clearly required by context words
and phrases used in this chapter shall have the following meanings: General
terms common with other chapters as defined in chapter 173-400 WAC, and terms
specific to the standards and limits of radionuclides as defined in this
section.
(1) "ALARA" means as low as
reasonably achievable making every reasonable effort to maintain exposures to
radiation as far below the dose standards in this chapter as is practical,
consistent with the purpose for which the licensed activity is undertaken,
taking into account the state of technology, the economics of improvements in
relation to the state of technology, the economics of improvements in relation
to benefits to the public health and safety, and other socioeconomic
considerations, and in relation to the utilization of nuclear energy, ionizing
radiation, and radioactive materials in the public interest.
(2) "As low as reasonably achievable control
technology" (ALARACT) means the use of radionuclide emission control technology
that achieves emission levels that are consistent with the philosophy of
ALARA.
(3) Best available
radionuclide control technology "BARCT" means technology which will result in a
radionuclide emission limitation based on the maximum degree of reduction for
radionuclides which would be emitted from any proposed new or modified emission
units which the permitting authority on a case-by-case basis, taking into
account energy, environmental, and economic impacts and other costs, determines
is achievable for such emission unit or modification through application of
production processes or available methods, systems, and techniques. In no event
shall application of best available radionuclide technology result in emissions
of radionuclides which would exceed the ambient annual standard limitation
specified in this chapter.
(4)
"Effective dose equivalent" means the sum of the products of absorbed dose and
appropriate factors to account for differences in biological effectiveness due
to the quality of radiation and its distribution in the body of reference
man.
(5) "Radionuclide" means any
nuclide that emits radiation.
(6)
"Rem" means a unit of dose equivalent radiation.
